function TDrvDarkWeather.GetJsonFromContent(const AContent: string) : TObject;
begin
  Result := TJson.JsonToObject<TVisualCrossingByCoords>(AContent);
end;

function TDrvDarkWeather.GetJsonFromContent(const AContent: string) : TObject;
var byCoords : TClass;
begin
  byCoords := TVisualCrossingByCoords;
  Result := TJson.JsonToObject<ByCoords>(AContent);
end;

[dcc32 Error] E2250 There is no overloaded version of 'JsonToObject' that can be called with these arguments